196009864 has 64 divisors (see below), whose sum is σ = 409328640. Its totient is φ = 87521280.

The previous prime is 196009829. The next prime is 196009903. The reversal of 196009864 is 468900691.

It is a self number, because there is not a number n which added to its sum of digits gives 196009864.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697404 + ... + 697684.

It is an arithmetic number, because the mean of its divisors is an integer number (6395760).

Almost surely, 2^196009864 is an apocalyptic number.

It is an amenable number.

196009864 is an abundant number, since it is smaller than the sum of its proper divisors (213318776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196009864 is a wasteful number, since it uses less digits than its factorization.

196009864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 196009864 is about 14000.3522812821. The cubic root of 196009864 is about 580.8883177273. Note that the first 3 decimals are identical.

The spelling of 196009864 in words is "one hundred ninety-six million, nine thousand, eight hundred sixty-four".